ENERGY-SAVING ACIDIC GAS CAPTURE SYSTEM AND METHOD USING CONDENSED WATER
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United States of America Patent
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Issued Date -
Sep 15, 2016
app pub date -
Dec 9, 2013
filing date -
Nov 21, 2013
priority date (Note) -
Abandoned
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Abstract
Provided are a system and method of reducing heat duty that has to be provided to a regenerator for regenerating an absorber in a system for capturing acidic gas such as carbon dioxide, that is, an acidic gas capture system and method capable of reducing energy consumption by utilizing heat generated by the acidic gas capture system itself. The system and method reduce a cooling capacity of a condenser by exchanging heat between condensed water of a low temperature generated by the capture system and processed gas of a high temperature to preheat the condensed water, or reduce a reboiler heat duty by inflowing the condensed water of a low temperature to a regeneration heat after being preheated. In addition, the condensed water of the low temperature may be selectively used to cool down a scrubber located at an upper portion of the absorber or a dilute solution.
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